Friction hub and shock absorber



Feb. 27, 1923. 1,446,895

M. FRUCHTL FRICTION HUB AND'SHOCK ABSGRBER Filed Mar. 29, 1922 :5 sheets-sheet 1 Feb. 27, 1923. 1,446,895 M. FRUCHTL FRICTION HUB AND SHOCK ABSORBER M. FRUCHTL FRICTION HUB AND SHOCK ABSORBER Feb. 27, 1923. 1,446,895

Filed Mar. 29, 1922 5 sheets-sheet 3 Patented F eb. 27, 1923.

YUNITED' S'IATESl g titans APAflEN'r orifice.

MARTIN FRUCHTL, or SALEM, ILLINOIS.

rRIcTIoN IIUB am) sIIocx aissonisnn.VUM

.Y Appneamnm'a'nareh 2a, 1922. serial'rrq. 547,787.

To all 'whom t may concern.' i I Be it known that I, MARTIN F RUGHTL, a citizen of the United States, residing at Salem, in the county of Marion Aand State of Illinois, have invented certain new and useful Improvements in Friction Hubs andv -Shock Absorbers, ofwhichthe following is a specification.

The present invention relates to wheelY hubs designed as shock absorbers and the considerably lessen any external shocks fromv the Vwheels strikingfan obstacle whethefrin axial or radial direction.,v v f `Another objectv ofthe; invention is Ato transfer all radial vibrations and shocks in thewheel into axial. onesfv ,As the wheelV axle i. est strength, insteadof inits 'transverse or tails;

I detail; and'l e ,c i

perspective Y fragmentaryv D ed to engage 1n the flutes or grooves 36 pro- Wheel With the impfoyeahub in piace 3 i Figure 2 is an axial sectioninlarger scale Y. ofthe wheel hub itself.; Y

in this manner is subjected to strains in its length direction .where it possesses the greatradial directions,v where it is A weaker, breakage with consequent accidents will to a great extent be prevented. Y

drawingsV one embodiment of the invention is illustrated and I.,

In .theY accompanying Figure .1 shows ,anel'e'vation fofVV 'a vehicle Y Figure. y3 is al section 'along-line 3-3 of Figure2; y; 5^ l "Figure is a plan view of one of the Vde-` Figure '5 is a perspective view ofanother Figurel 6 is la view vof some vother detalls.

In the drawings reference-numerall rep-' V resents a vehicle wheel' of any usual, l.type

l whether with spokes or constructed as ardisk' On this l wheel ormade of wood ormetal.' wheel a hub 11. is shown. Y i Y Referring particularly to VFigure 2 .reference numeral 12 is thewheel axle having a collar 13 against which the housing abuts This housing is made 'of two hollow shells 14 and 15 which are Yclamped together by means v of bolts 16 engaged t' Wrouffgih radialfanges I V17 and 2O between which the spokes orjthe disk portion 18 of the wheel 10 is rigidly rwheld. The disk portion 18 abuts against the cylindrical wall 19 .provided on the inner.

shell 14and Vspaced from "thelradial flange 2O on the outer shell 15 ofthe housing. This cylindrical flange forms4v a continuation of the cylindrical part21 of the inner shell and the inner face 22 thereof is flush withthe 'inner face 23 of a corresponding cylindrical part724 on the vouter shell 15.. The inner shell continuesinwardlv from the cylindri-k cal part 21by means of'a cone shapedwall f 25 ,whichl terminates ,with .a cyindrical'. boss 26 abutting Vwithits. plain innerV face 27 against the axle collar 13 and ,is provided with a central bore 28 of greater diameter" than theiiller piece v29 0n the axle. Y Y

The outer shell, 15gv is constructed-'in a similar manner with a 'conical wall 30 con- 33 therein. Y I

\ necting'thecylindrical part 24 with the Y. threaded cylindrical end 31 and a cap 32 is` threaded overthis end to close the opening Y.

` f Y V`so kUpon the axle arm vv3 4' .is V'mounted a' i double-'cone 3.5, which is tapering outwardly andwprovided with 'a plurality of ,radial grooves 36 along its innerand outer-'tapering sides. This double cone 35 yisl heldin positionby means of a nut 37threaded on thee'nd ofthe axle arm and between the same and the cone isfpreferablyrinserted af ballv bearing 38, the otherA end ofgthe cone abutting against the outer end of the fillerA piece 29. In thisfmanner a'certain amount lof friction'will beset up betweenv the c one rigid on the axle armf n In case of'drive wheels it may be preferable to provide akey between the axle arm and the double 'cone' 35.

Wedge membersl 40 each comprise'a pair of lingers 41, see Figures 2 and 5, which are 'pivoted together. at'42 the joint forming spherical head 43,- The fingers 41 are adaptand itsend facesin order to hold it. semi-v lingers`41, these nicks rorrecesses 44 will all Y be situated in'circles ofthe same diameter as the helical spring 45'which with-its one endcoil engagesl in the recesses 44 and with itsicoil at opposite end .engages in an annu? la? grQQv 46T tome@ t in 'the invasi-e0@ .Ot

tiv'o' shells. 'Qlflie disksA 5'0" and 5l Las at 60 to enga Corresponding"keys "'61 provided infthe` housing 2s'that there ivill .be at Ano time anv =cireumie'rential y,displzmethe shell lll. Another coil spring 4:8 similarly engages in vtheother recesses 44: and the annular groove 47 in the inner facev of the outer shell 15. 1- f f f A. l

A pair oi' cylindrical disks 50 and 51 engage with their cylind'rieafl-fouter faces-the inner cylindrical surfaces 22 and 23 of the shells llland 15 andi-*the added lengv'thlof these disks is considerably less than the distance betivcenthe opposite feo'n'e ""ces eithe eilgrooved nient -bet'iveen'the dislslandthe housing.

Each .of these disksfO and 51 are provided Y and' respectivelyengagel the small end shells". Thesprings befand" 55 are tapered v lapproximately'the "same amount asthe' conid the housingdmder noiiuz'illloadflbut i `tionsare set 'up within".tli'e"ivlie elfw l "cal We '.j'such l Y "from "said ywalils Whether com 1 the` ,casingfan'd "supported .by means `mediary-fof the disks 5,0 and 51i d n ef the 'springs-is'sd seleete'd'that thea 1 andthe disks. `5()H and 5.1, Avv-.herebjv:- thel'l lls an'd() of the' .shellsand "are1 of iametelrs thatthey always "are spaced seed r :ex-

panded., M A VVT 'opposing surfaces of the' disks I50 and 5l Aare jl'o'rovided'vith l're'cesses" 58; facingv each einer and@ whichepheficelheads is of the Wedgeinembers' arefreeeived, flhese rec'e'sses 58'v are oblong'inL'lrcumferential d1- slightly"apartw-and v itl Will "nmvbe evident htfthe 'aidei` arrn` v'Ziththe "duble cone A85 resting-fin `they V "orn'i'ectlfbetween vthe. fingers o-.thevvedge members. "isliatingj springs'e, 148; 54anihdthroughft el. nt'erlThe strength the axle will, 'coinede'mvith' the axis of 'mainly of y axially, the' emitidas@ m11 actbetween thelingersillf of the Wedge ineinbers in suclia manner tliat-'thevlaiefspread Vapart,thereby Conpressifng springs 4545618, which .thereupon leaeit. pressure iii l tion againstbotlr shells .olfthe housing.

i. n n .gr tainiilarly .a Ldlal shoek one .the Wheel trim Willcause lisplfaeeinent; in aj v' ealplane ers V 4 tter Willbe pressedapart. bjvthelieads lobo fthe Wedge membersS ltherebyf,eerting cmpressioir-action on the vcone spri between. the double cone;I the Wedlije ,i emb is and 5.5, which inI turn. transmits lthis @pressure in vaxial direotionagainst .the shellsfllfV and." 15., A side blow on thevvheel rim Wilhls'obe transferred to axial strain on the axle arm "although this Will result in the tilting of Jthe housing around the Same but the axial compression of thev springs Will occur in the same manner.

Havin'gffbhus described the invention what is claimed as new is: d lisfA'vvheel-"lrubComprising a housing,` sur`v rounding an axle arm, a Wedging member carried by said 'axle arm7 and 'provided with grooves" situated in radial planes,V supporteleinentsfter said member', .each 'of said 'l ments including' a'pair of ,ngers'engagc nr said: grovesand hingedtegether te torni" aispheri'cal' head,` and yieldablemeans inserted" bet-'Weenfsaid elements `Aand said', housing. f *l l "`"`-2. Aivvheel hub comprising ahousing` sur. rormdinfg'an aile 'i-ring' a vvedgingmember barriedbysaid aile farm;A and providedvith grooves situated iii iradialplanes," "supporting elements for said membe'r' eachof 'said elements includinga pair of lingers engagin fgrobves .and hingedftogether to ifw 'rm a Splierieal Vheadff"disks" slidably' mount:

' "e'd 1n said'fhofusing" in *axial 'directionD said "adapted 'tdreceive" said heads and yieldable d casing` and With d theiothrfrendf engaging respectively"Withlsaid fingers and said disks.

4l. The combination of an axle arn'igio'f a Wheel hub;` saidhub comprising "a `conical member mounted upon said arm and/tapering'tiitvvardly in radial"directionA froml said said conical member being provided.

fin' said'groovesg" 'a spherical head arm, "said conickalllemberibeing previded including a Pair Off! hiils'eidi nsfs andY @in-ry .fOlljmedat hinged end of said; in-

and said casing permitting axial reciprocation of the disks inthe casing.V 1 l 5. A wheel hub comprising a housing surrounding an axle arm, an axially slidable disk in said housing provided with a tapered side surface, a spring co-axial with said axle arm and acting in axial direction between said housing and said disk, and wedging means inserted between the axle arm and the taperedv side of said disk, said wedging means including a cone member mounted upon the axle arm.

6. A wheel hub comprising a housing surrounding an axle arm, axially sli'dable disks in said housing, provided with oppositely situated concave surfaces on theirinner periphery, springs co-axial with said axle arm and acting between said housing and said disks tending to hold said disks together and wedging means inserted Vbetween the axle arm and said concave surfaces of the disks, said wedging means including a cone mem` .ber mounted" upon Vthe axle arm.

7. A wheel hub comprising a housing surrounding an axle arm, a cone member resv volubly mounted on the axle arm, vwedge members inserted between said cone memwith said axle arm engaging said housing vand tending to hold said wedge members pressed against the conical side vof the cone' member. Y 'Y 8. A wheel hub comprising a housing surroundingV an axle arm, a cone member revolubly mounted on the axle arm, Wedge' membersinserted between said cone member and said housing and including hinged n gers, springs co-axial with said axle arm, engaging said housing and tending to hold said lingers pressed against the conical sides of the cone member. l

9. A wheelhub comprising a housing sur` roundingan axle arm, a cone member revolubly mountedon the axle arm, wedge `members, inserted between said. cone mem ber and said housing and includinghinged fingers, springs co-axial with saidaxle arm engaging said housing and tending `to hold said ngers in slidablecngagement with the conical 'sides of the cone member.

ture.

.5o I In testimony whereofIafix ,myk signa 

